Fever Flashcards
Fever or unknown origin definition:
Temp > 38.3
Duration of fever > 3 weeks
Failure to reach diagnosis despite 1 week of inpatient investigation
Classification of FUO
Classic FUO
Nosocomial
Neutropenic
FUO associated with HIV infection
Classic FUO
Temp >38.3
Duration > 3 weeks
Failure to reach diagnosis despite: 3 outpatient visits or 3 days in the hospital
Or 1 week of “intelligent and invasive” ambulatory investigation
Nosocomial FUO
Temp > 38.3
In hospitalized patient who is receiving acute care and in whom inf wa snot manifest or incubating on admission
3 days of investigation, including at least 2 days incubation of cultures -> minimum requirement for diagnosis
Neutropenic FUO
Temp> 38.3
Patient with neutrophil count < 500/uL or is expected to fall to that level in 1-2 days
Nothing found after 3 days of investigation including at least 2 days incubation of cultures